2020-02-10 16:13:42 +01:00
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import QueryBuilder from "./QueryBuilder";
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import ErrorBuilder from "./ErrorBuilder";
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class Middleware extends QueryBuilder {
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/**
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* Initialisation de la classe
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* @param {Object} params
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* @param {Object} models
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*/
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constructor(params, models) {
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super(params, models);
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2020-02-11 15:38:28 +01:00
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this.params = params;
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this.models = models;
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2020-02-10 16:13:42 +01:00
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this.includes = [];
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}
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/**
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* Fonction permettant de créer un nouvel élément
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* @param {Object} req
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* @param {Function} callback
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* @return {Boolean}
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*/
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createOne(req, callback) {
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// On test les droits
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if (!this._haveRight(req)) {
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callback(new ErrorBuilder(401.1, "You're not allowed"));
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return false;
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}
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// On teste le body
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this._checkCreateOneValues(req, (err, value) => {
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// Il manque un paramètre dans le body
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if (err) {
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callback(err, value);
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return false;
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}
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this._insertItem(req, value, callback);
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return true;
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});
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return true;
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}
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/**
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* Fonction permettant de retourner une liste d'items
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* @param {Object} req
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* @param {Function} callback
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*/
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getAll(req, callback) {
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// On spécifie le type de requête (list ou item)
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req.getType = "list";
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this._createQuery(req, (err, query, limit) => {
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if (err) {
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callback(err, query);
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return false;
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}
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this.models[this.params.model]
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.findAndCountAll(query)
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.then(res => {
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if (!res || res.count === 0) {
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callback();
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return false;
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}
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const rows = [];
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for (let i = 0; i < res.rows.length; i += 1) {
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const current = res.rows[i];
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let found = false;
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for (let j = 0; j < rows.length; j += 1) {
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if (rows[j].id === current.id) {
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found = true;
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rows[j].assign({}, rows[j], current);
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break;
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}
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}
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if (!found || rows.length === 0) {
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rows.push(current);
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}
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}
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const total = rows.length;
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const values = rows.slice(limit.start, limit.start + limit.limit);
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callback(null, {
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data: this._formatItems(req, values),
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...QueryBuilder._createPagination(
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req,
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total,
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limit.limit,
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limit.start
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)
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});
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return true;
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})
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.catch(callback);
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return true;
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});
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}
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/**
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* Fonction permettant de retourner un item par son Id
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* @param {Object} req
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* @param {Function} callback
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*/
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getOne(req, callback) {
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// On spécifie le type de requête (list ou item)
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req.getType = "item";
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this._createQuery(req, (err, query) => {
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if (err) {
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callback(err, query);
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return false;
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}
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this.models[this.params.model]
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.findOne(query)
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.then(item => {
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if (!item) {
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callback(new ErrorBuilder(404, "Item not found"));
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return false;
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}
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let formatedItem = item;
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if (this.params.format) {
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const formatRules = this.params.format[req.user.role];
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if (formatRules) {
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formatedItem = this._formatItem(item, formatRules);
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}
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}
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callback(null, formatedItem);
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return true;
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})
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.catch(callback);
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return true;
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});
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}
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/**
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* Fonction permettant de mettre à jour un item
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* @param {Object} req
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* @param {Function} callback
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* @return {Boolean}
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*/
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patchOne(req, callback) {
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// On test les droits
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if (!this._haveRight(req)) {
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callback(new ErrorBuilder(401.1, "You're not allowed"));
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return false;
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}
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// On teste les params
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const { error, value } = this.params.validate.update.validate(req.body, {
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abortEarly: false
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});
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// Un paramètre n'est pas bon dans les params
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if (error) {
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2020-02-11 15:38:28 +01:00
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callback(new ErrorBuilder(406.1, error));
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2020-02-10 16:13:42 +01:00
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return false;
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}
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this.getOne(req, (err, item) => {
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if (err) {
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callback(err, item);
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return false;
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}
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item
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.update(value)
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.then(updated => {
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callback(null, updated);
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})
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.catch(callback);
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return true;
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});
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return true;
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}
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/**
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* Fonction permettant de supprimer un item
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* @param {Object} req
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* @param {Function} callback
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* @return {Boolean}
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*/
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deleteOne(req, callback) {
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// On test les droits
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if (!this._haveRight(req)) {
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callback(new ErrorBuilder(401.1, "You're not allowed"));
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return false;
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}
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this.getOne(req, (err, item) => {
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if (err) {
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callback(err, item);
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return false;
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}
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item
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.destroy()
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.then(() => {
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callback(null, {});
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})
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.catch(callback);
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return true;
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});
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return true;
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}
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}
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export default Middleware;
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